Some of them are Quest Specific, like the Missing Daughter and the North Tower, and somewhere in Pirate's Bane.
The other is the Quest Branch of an NPC at the Eastern Sentry Point, going east towards the Boundary between Noer Town and Pirate's Bane.
And the other is purely exploration of a few places in Noer Town.
Essentially, go out and do quests around the World.